With Kregg Lumpkin out and Thomas Brown still a huge question mark for Georgia's game against Florida, Bulldog running back coach Tony Ball said he's taking steps to ensure that redshirt freshman Knowshon Moreno doesn't get overworked during practice.

"We're just limiting the amount of full speed work that he's doing," Ball said Tuesday. "We're just trying to limit the potential shot that he may take."

Ball said that senior Jason Johnson and redshirt freshman Shaun Chapas will continue to be Moreno's top backups.

"Jason knows what to do," Ball said. "He knows both the fullback and the H-position (tailback). It's just a matter of him getting n there."